The Sun is a ball of glowing gases, a star at the centre of our Solar System. Its diameter is about 1.39 million kilometres, or more than 100 times the diameter of Earth. However, the Sun is a small star compared to other known stars in the sky, such as Antares in the constellation Scorpius, which is a giant star with a diameter of about 450.000.000.000 km.
Our Sun is a so-called yellow star and is composed of 73% Hydrogen, 25% helium and 2% heavier elements, giving it a density of only a quarter of Earth’s, despite its size.
- Average distance from Earth: 149.5 million km.
- Model: 149 metres (from Earth)
- Size: 1.39 million kilometres (diameter)
- Model: 139 cm (diameter)
- Orbital period around the Sun: none
- Volume:(kg.) 1.300.000 times Earth’s
- Mass: 333,000 times that of Earth
- Surface temperature: 5600 degrees – centre 15.000.009 degrees
- Number of Moons: none
- Gravity 28 times the Earth’s
- Rotation: 24 days and 15 hours
- Age approx. 4.5 billion years
- Mass: 981 million tonnes
- Weight: model 140 kg.